Record a conversation turn

POST /api/v1/projects/{id}/memory/turns
Bearer auth

Records a single conversation turn to long-term memory. The project scope is carried by the route id path parameter and the org is derived from that project. The caller supplies user_id (required) and an optional agent_id to identify the end user.

Path parameters

  • id string Required

    Project ID

application/json

Body Required

Turn to record

  • agent_id string
  • content string
  • idempotency_key string
  • is_error boolean
  • metadata object

    Additional properties are allowed.

  • model_name string
  • role string Required
  • session_id string Required
  • tool_call_id string
  • tool_calls array[object]

    Additional properties are allowed.

  • tool_name string
  • user_id string Required

Responses

  • 406

    Unsupported or malformed API version, an operation unavailable in the selected published contract, or an unacceptable representation (including unsupported media-type parameters or excluded SSE). Existing authentication, authorization, and rate-limit failures take precedence.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Optional validation details defined by the standard error schema; API negotiation errors do not emit this field.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Fields with validation failures.

        Hide fields attributes Show fields attributes object

        A field and its validation failure.

        • description string Required

          Human-readable validation failure.

        • field string Required

          Name or path of the invalid request field.

    • detail string Required

      Human-readable error details.

    • error integer Required

      HTTP status code.

    • errorCode string Required

      Machine-readable error code.

    • parameters array[string]

      Request parameter names associated with the error; omitted when none apply.

    • reason string Required

      HTTP status reason phrase.

    Hide response attributes Show response attributes object
    • badRequestDetail object

      Optional validation details defined by the standard error schema; API negotiation errors do not emit this field.

      Hide badRequestDetail attribute Show badRequestDetail attribute object
      • fields array[object]

        Fields with validation failures.

        Hide fields attributes Show fields attributes object

        A field and its validation failure.

        • description string Required

          Human-readable validation failure.

        • field string Required

          Name or path of the invalid request field.

    • detail string Required

      Human-readable error details.

    • error integer Required

      HTTP status code.

    • errorCode string Required

      Machine-readable error code.

    • parameters array[string]

      Request parameter names associated with the error; omitted when none apply.

    • reason string Required

      HTTP status reason phrase.
  • 200

    Turn already recorded (idempotent replay of a previously-supplied idempotency_key)
  • 201

    Turn recorded
  • 400

    Invalid request body

    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
  • 401

    Missing or invalid credentials

    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
  • 403

    Caller lacks deployment-management permission on the project

    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
  • 500

    Internal error

    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
  • 502

    Memory service unreachable

    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
    Hide response attributes Show response attributes object
    • code string
    • error string
    • success boolean
POST /api/v1/projects/{id}/memory/turns 
curl \
 --request POST 'https://agentengine.mongodb.com/api/v1/projects/{id}/memory/turns' \
 --header "Authorization: $API_KEY" \
 --header "Content-Type: application/json" \
 --data '{
  "agent_id": "string",
  "content": "string",
  "idempotency_key": "string",
  "is_error": true,
  "metadata": {},
  "model_name": "string",
  "role": "string",
  "session_id": "string",
  "tool_call_id": "string",
  "tool_calls": [
    {}
  ],
  "tool_name": "string",
  "user_id": "string"
}'
Request examples 
{
  "agent_id": "string",
  "content": "string",
  "idempotency_key": "string",
  "is_error": true,
  "metadata": {},
  "model_name": "string",
  "role": "string",
  "session_id": "string",
  "tool_call_id": "string",
  "tool_calls": [
    {}
  ],
  "tool_name": "string",
  "user_id": "string"
}
Response examples (406) 
{
  "detail": "This operation is not available in API version 2026-09-20-preview.",
  "error": 406,
  "errorCode": "OPERATION_NOT_IN_API_VERSION",
  "parameters": [
    "Accept"
  ],
  "reason": "Not Acceptable"
}
{
  "detail": "This operation supports text/event-stream, which the Accept header excludes. Remove unsupported media-type parameters or accept this type with a positive q value.",
  "error": 406,
  "errorCode": "UNACCEPTABLE_MEDIA_TYPE",
  "parameters": [
    "Accept"
  ],
  "reason": "Not Acceptable"
}
{
  "detail": "The requested API version is not supported. Supported versions: 2026-09-20-preview.",
  "error": 406,
  "errorCode": "UNSUPPORTED_API_VERSION",
  "parameters": [
    "Accept"
  ],
  "reason": "Not Acceptable"
}
Response examples (406) 
{
  "detail": "This operation is not available in API version 2026-09-20-preview.",
  "error": 406,
  "errorCode": "OPERATION_NOT_IN_API_VERSION",
  "parameters": [
    "Accept"
  ],
  "reason": "Not Acceptable"
}
Response examples (200) 
{}
Response examples (200) 
{}
Response examples (201) 
{}
Response examples (201) 
{}
Response examples (400) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (400) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (401) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (401) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (403) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (403) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (500) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (500) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (502) 
{
  "code": "string",
  "error": "string",
  "success": true
}
Response examples (502) 
{
  "code": "string",
  "error": "string",
  "success": true
}